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Electronics and Communication Engineering - Radio Receivers

Exercise : Radio Receivers - Section 2
31.
The selectivity curve of a standard receiver is represented by
curve A
curve B
curve C
curve D
Answer: Option
Explanation:
No answer description is available. Let's discuss.
32.
Which of the following statement about the advantage of phase discriminator over the slope detector is false?
Fewer tuned circuits
Better linearity
Greater limiting
Much easier alignment
Answer: Option
Explanation:
No answer description is available. Let's discuss.
33.
Fidelity of a receiver represents
the sensitivity expressed in terms of voltage that must be applied to the receiver input to give a standard output
the extent to which the receiver is capable of distinguishing between the desired signal and other frequencies
the variation of the output with the modulation frequency when the output impedance is a resistance
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
34.
Which of the following produces upper and lower side frequencies?
Microphone
Demodulator in a superheterodyne receiver
Modulator in a. radio transmitter
Oscillator in a receiver
Answer: Option
Explanation:
No answer description is available. Let's discuss.
35.
The passband of the tuned circuits of a radio receiver should be equal to
20 kHz
455 kHz
1455 kHz
more than 455 kHz
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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